Can anybody recommend a good GA package? Ideally, one which can also plot the solutions (I need it for a job-shop problem solver). Otherwise, for plotting, I’m thinking of using a plotting package to render some stacked bars. The end result should look like:

Have you seen BlackBoxOptim.jl? It doesn’t have GA, but other nice algorithms. There are also simulated annealing, particle swarm and Nelder-Mead of Optim.jl. PyCall.jl and MATLAB.jl are also options if you want to explore other languages through Julia.

Developer of BlackBoxOptim.jl (BBO) here (so slightly biased). Depends on what you mean with GA, BBO has Differential Evolution (DE) which is an Evolutionary Algorithm, like GA. BBO is geared towards optimizing Float64-based vectors though so if you need to optimize Int’s it is not the most natural choice, but see: